When you're hardening your house to prevent theft and keep out intruders, don't forget about air conditioner security risks.

Portable air conditioners are an option for spaces without central AC, but consider these potential drawbacks before ...

PROPER maintenance of your central AC unit during winter isn’t as simple as turning it off until spring. Homeowners taking ...

Portable ACs have specific quirks to consider. Here's what I learned about buying and installing a mobile air conditioner. John Carlsen has more than a decade of experience testing and reviewing home ...

Why do window ACs actually need a window? On the surface, it feels unnecessary — after all, the unit is clearly designed to blow cold air from the front. Why can't you just set it on the floor like a ...

It's always in the middle of a heatwave. Your AC hums to life, but instead of the icy rush you're craving, it pushes out a faint, lukewarm breeze. That's when the dread sets in. Is the unit failing?

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...